Antique radios, Old Time Radios
RK31
Country:
United States of America (USA)
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Identical to |
RK31
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Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Br)
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Filament |
Vf 7.5 Volts / If 3 Ampere |
Information source |
Taschenbuch zum Röhren-Codex 1948/49
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RK31: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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RK31: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez
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Collection of
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